According to Siemens, these devices see action across most sectors including chemical, communications, critical manufacturing, dams, defense industrial base, energy, food and agriculture, government facilities, transportation systems, and water and wastewater systems. Siemens estimates that these products see use on a global basis.

A cross-protocol attack could allow an attacker to decrypt intercepted TLS sessions by using a server supporting SSLv2 as a Bleichenbacher RSA padding oracle.

CVE-2016-0800 is the case number assigned to this vulnerability, which has a CVSS v3 base score of 4.0.

Crafting a working exploit for this vulnerability would be difficult.

Siemens recommends users apply the following mitigations until patches are available:
• Protect network access to the web server (443/TCP, 10000/TCP for ROX I by default) on the devices with appropriate mechanisms.
• Restrict access to management interface to internal network.
• Apply defense-in-depth.

As a general security measure, Siemens recommends to protect network access to nonperimeter devices with appropriate mechanisms. Siemens said to configure the environment according to its operational guidelines in order to run the devices in a protected IT environment.